why does log a + log b = log (ab)
Let log a be some number A and log b be some number B
now the natural log of something is the equivalent of saying a=e^A and b = e^B
So a*b = e^A * e^B which by rules of indices
= e^(A+B)
Therefore log(ab) = log(e^(A+B))
= A + B = log a + log b
RV
Related Maths A Level answers
All answers ▸Differentiating equations of the type ln[f(x)]
y = 4x/(x^2+5). a) Find dy/dx, writing your answer as a single fraction in its simplest form. b) Hence find the set of values of x for which dy/dx < 0
Parlami di cosa hai fatto durante le vacanze di Natale.
When you integrate, why do you need to add a +C on the end?